The KUHN 421169 is a genuine OEM tightening washer designed for secure fastening in various KUHN agricultural machines. Manufactured to precise specifications, this washer has an inner diameter of 20 mm, an outer diameter of 36 mm, and a thickness of 4 mm, weighing 0.015 kg. It ensures proper load distribution and prevents loosening of bolted connections, maintaining the integrity and performance of your equipment.